Update map layer styles

[caseycesari]

Consult with design on the following changes:

1. Add name labels. There is a field (name20) that can be used.
   2. Modify the style of the boundaries so that it's easier to see what is contained within a municipality, and what is outside of one. I think a somewhat transparent fill color could help, as well as making the boundary line less dashed. Already done in Add Topographic basemap for Land & water layer #48
   3. Change the polygon layer to be more visible when it is displayed over the satellite basemap layer. Deferred to Improve Polygon Boundary for Satellite Basemap #56

[rajadain]

Layer styles: figma.com/file/tJPZ0lkT5C3SAyS2g2R1aA/IoW---Boundary-Sync-Tool?node-id=498%3A14829
Style updates to the municipal boundary, polygon edge, polygon face, and vertices.

~ @gatesgodin #48 (comment)